Modelica.Electrical.Analog.Sensors

Information

This package contains potential, voltage, and current sensors.

Extends from Modelica.Icons.Library (Icon for library).

Package Content

Name	Description
PotentialSensor	Sensor to measure the potential
VoltageSensor	Sensor to measure the voltage between two pins
CurrentSensor	Sensor to measure the current in a branch
PowerSensor	Sensor to measure the power

Modelica.Electrical.Analog.Sensors.PotentialSensor

Information

Connectors

Type	Name	Description
PositivePin	p	pin to be measured
output RealOutput	phi	Absolute voltage potential as output signal

Modelica definition

model PotentialSensor "Sensor to measure the potential"
  extends Modelica.Icons.RotationalSensor;

  Interfaces.PositivePin p "pin to be measured";
  Modelica.Blocks.Interfaces.RealOutput phi 
    "Absolute voltage potential as output signal";
equation 
  p.i = 0;
  phi = p.v;
end PotentialSensor;

Modelica.Electrical.Analog.Sensors.VoltageSensor

Information

Connectors

Type	Name	Description
PositivePin	p	positive pin
NegativePin	n	negative pin
output RealOutput	v	Voltage between pin p and n (= p.v - n.v) as output signal

Modelica definition

model VoltageSensor "Sensor to measure the voltage between two pins"
  extends Modelica.Icons.RotationalSensor;

  Interfaces.PositivePin p "positive pin";
  Interfaces.NegativePin n "negative pin";
  Modelica.Blocks.Interfaces.RealOutput v 
    "Voltage between pin p and n (= p.v - n.v) as output signal";

equation 
  p.i = 0;
  n.i = 0;
  v = p.v - n.v;
end VoltageSensor;

Modelica.Electrical.Analog.Sensors.CurrentSensor

Information

Connectors

Type	Name	Description
PositivePin	p	positive pin
NegativePin	n	negative pin
output RealOutput	i	current in the branch from p to n as output signal

Modelica definition

model CurrentSensor "Sensor to measure the current in a branch"
  extends Modelica.Icons.RotationalSensor;

  Interfaces.PositivePin p "positive pin";
  Interfaces.NegativePin n "negative pin";
  Modelica.Blocks.Interfaces.RealOutput i 
    "current in the branch from p to n as output signal";

equation 
  p.v = n.v;
  p.i = i;
  n.i = -i;
end CurrentSensor;

Modelica.Electrical.Analog.Sensors.PowerSensor

Information

This power sensor measures instantaneous electrical power of a singlephase system and has a separated voltage and current path. The pins of the voltage path are pv and nv, the pins of the current path are pc and nc. The internal resistance of the current path is zero, the internal resistance of the voltage path is infinite.

Connectors

Type	Name	Description
PositivePin	pc	Positive pin, current path
NegativePin	nc	Negative pin, current path
PositivePin	pv	Positive pin, voltage path
NegativePin	nv	Negative pin, voltage path
output RealOutput	power

Modelica definition

model PowerSensor "Sensor to measure the power"

  Modelica.Electrical.Analog.Interfaces.PositivePin pc 
    "Positive pin, current path";
  Modelica.Electrical.Analog.Interfaces.NegativePin nc 
    "Negative pin, current path";
  Modelica.Electrical.Analog.Interfaces.PositivePin pv 
    "Positive pin, voltage path";
  Modelica.Electrical.Analog.Interfaces.NegativePin nv 
    "Negative pin, voltage path";
  Modelica.Blocks.Interfaces.RealOutput power;
  Modelica.Electrical.Analog.Sensors.VoltageSensor voltageSensor;
  Modelica.Electrical.Analog.Sensors.CurrentSensor currentSensor;
  Modelica.Blocks.Math.Product product;

equation 
  connect(pv, voltageSensor.p);
  connect(voltageSensor.n, nv);
  connect(pc, currentSensor.p);
  connect(currentSensor.n, nc);
  connect(currentSensor.i, product.u2);
  connect(voltageSensor.v, product.u1);
  connect(product.y, power);
end PowerSensor;